General Electric Company

Sivarama Seshu Putcha

Warren R Germer

Gregory Paul Lavoie

Daniel Arthur Staver

David Dean Elmore

Donald F Bullock

Mark J Plis

Curtis Whitmore Crittenden

Mark E Hoffman

Roland J Provost

Thomas Maehl

Ellen D Edge

Jeffrey W Mammen

Arthur C Burt

Line voltage and line current signals are sensed on a power line having at least one conducting path. The sensed line voltages and line currents are converted into a digital signal. A phase-to-neutral voltage signal and phase current signal are computed from the digital signal to thereby define a phase of the power line. An interval of orthogonality is determined from the sensed voltage and current signals, coinciding with passage of an integral number of cycles of a fundamental frequency reference signal which is computed from the computed phase-to-neutral voltage signal. A vector metering quantity is computed for the determined interval of orthogonality from the computed phase-to-neutral voltage signal and the computed phase current signal. The vector metering quantities to be computed may be identified and computed based upon an associated detent. The vector metering quantity is also computed based on an identified circuit topology.

Vector electricity meters and associated vector electricity metering

Growing community of inventors

Somersworth, NH, United States of America

Sivarama Seshu Putcha